ASN Wikibase Occurrence # 359562
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| Date: | Thursday 17 November 1994 |
| Time: | 08:35 LT |
| Type: |  Fairchild SA227-AC Metro III |
| Owner/operator: | Horizon Air |
| Registration: | N380PH |
| MSN: | AC-582 |
| Total airframe hrs: | 23955 hours |
| Engine model: | GARRETT TPE331-114 |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Missoula, MT -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Helena, MT (KHLN) |
| Spokane, WA (KGEG) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE IN CRUISE FLIGHT, THE FIRST STAGE COMPRESSOR IMPELLER OF THE NUMBER TWO ENGINE EXPERIENCED A TOTAL FAILURE. THE CREW THEN ELECTED TO MAKE A PRECAUTIONARY LANDING AT AN ALTERNATE AIRPORT. A METALLURGICAL ANALYSIS REVEALED THAT THE IMPELLER HAD EXPERIENCED A LOW CYCLE FATIGUE FRACTURE.
Probable Cause: THE FATIGUE FAILURE OF THE FIRST STAGE COMPRESSOR IMPELLER.
Accident investigation:
 |
|
Sources:
NTSB SEA95IA021
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Mar-2024 12:13 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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